Home / 1,040,222.68-1,560,504.79-320,564.51

Finding the Fourth Proportional to 1,040,222.68, 1,560,504.79 and 320,564.51

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Solution

The fourth proportional to 1,040,222.68, 1,560,504.79 and 320,564.51 is: 480,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,222.68 : 1,560,504.79 = 320,564.51 : x
  2. Step 2: Convert to fraction form
    1,040,222.68/1,560,504.79 = 320,564.51/x
  3. Step 3: Cross multiply
    1,040,222.68x = 1,560,504.79 × 320,564.51
  4. Step 4: Simplify right side
    1,040,222.68x = 500,242,453,359.00
  5. Step 5: Solve for x
    x = 500,242,453,359.00/1,040,222.68
  6. Step 6: Final answer
    x = 480,899.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.